
#
# Project Definitions
#
#
PROJECT_NAME = lcd01
CPU_CHIP     = 324p
CPU_SPEED    = 20000000UL
# LFUSE        Bit Description            Default
# CKDIV8(4)    7   Divide clock by 8      0 (programmed)
# CKOUT(3)     6   Clock output           1 (unprogrammed)
# SUT1         5   Select start-up time   1 (unprogrammed)
# SUT0         4   Select start-up time   0 (programmed)
# CKSEL3       3   Select Clock source    0 (programmed)
# CKSEL2       2   Select Clock source    0 (programmed)
# CKSEL1       1   Select Clock source    1 (unprogrammed)
# CKSEL0       0   Select Clock source    0 (programmed)
LFUSE        = 0xe6

# HFUSE        Bit Description            Default
# RSTDISBL(1)  7   External Reset Disable 1 (unprogrammed)
# DWEN         6   debugWIRE Enable       1 (unprogrammed)
# SPIEN(2)     5   Enable Serial Program  0 (programmed)
# WDTON(3)     4   Watchdog Timer Always  1 (unprogrammed)
#                  On                         1 = no watchdog
#                                             0 = watchdog running
# EESAVE       3   EEPROM memory is       1 (unprogrammed)
#                  preserved through the 
#                  Chip Erase   
# BODLEVEL2(4) 2   Brown-out Detector     1 (unprogrammed)
#                  trigger level
# BODLEVEL1(4) 1   Brown-out Detector     1 (unprogrammed)
#                  trigger level
# BODLEVEL0(4) 0   Brown-out Detector     1 (unprogrammed)
#                  trigger level
#
HFUSE        = 0xd7

#
#
FORMAT    = ihex
TARGET    = $(PROJECT_NAME)-$(CPU_CHIP)
MCU       = atmega$(CPU_CHIP)
SRC       = lcd324p.c
SRC      += lcd.c
SRC      += bargraph.c
SRC      += ../evie-core/crc8.c
SRC      += ../evie-core/megaserial.c
SRC      += ../evie-core/packet.c
SRC      += ../evie-core/serial.c
SRC      += ../evie-core/font10x16.c
SRC      += ../evie-core/font3x5.c
SRC      += ../evie-core/touch.c
ASRC      = 
ASRC     += ../evie-core/touchw.S
OPTIMIZE  = s

#
# Make some source file dependencies.
#


# Name of this Makefile (used for "make depend").
MAKEFILE = Makefile

# Compiler flag to set the C Standard level.
# c89   - "ANSI" C
# gnu89 - c89 plus GCC extensions
# c99   - ISO C99 standard (not yet fully implemented)
# gnu99 - c99 plus GCC extensions
CSTANDARD = -std=gnu99

# Place -D or -U options here
CDEFS = 

# Place -I options here
CINCS = -I"../evie-core"


CDEBUG  = -g
CWARN   = -Wall -Wstrict-prototypes
CTUNING = -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
#CEXTRA = -Wa,-adhlns=$(<:.c=.lst)
CFLAGS  = -DF_CPU=$(CPU_SPEED)
CFLAGS += $(CDEBUG) 
CFLAGS += $(CDEFS) 
CFLAGS += $(CINCS) 
CFLAGS += -O$(OPTIMIZE) 
CFLAGS += $(CWARN) 
CFLAGS += $(CSTANDARD) 
CFLAGS += $(CEXTRA)


#ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs 


#Additional libraries.

# Minimalistic printf version
PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min

# Floating point printf version (requires MATH_LIB = -lm below)
PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_flt

PRINTF_LIB = 

# Minimalistic scanf version
SCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min

# Floating point + %[ scanf version (requires MATH_LIB = -lm below)
SCANF_LIB_FLOAT = -Wl,-u,vfscanf -lscanf_flt

SCANF_LIB = 

MATH_LIB = -lm

# External memory options

# 64 KB of external RAM, starting after internal RAM (ATmega128!),
# used for variables (.data/.bss) and heap (malloc()).
#EXTMEMOPTS = -Wl,-Tdata=0x801100,--defsym=__heap_end=0x80ffff

# 64 KB of external RAM, starting after internal RAM (ATmega128!),
# only used for heap (malloc()).
#EXTMEMOPTS = -Wl,--defsym=__heap_start=0x801100,--defsym=__heap_end=0x80ffff

EXTMEMOPTS =

#LDMAP = $(LDFLAGS) -Wl,-Map=$(TARGET).map,--cref
LDFLAGS = $(EXTMEMOPTS) $(LDMAP) $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB)


# Programming support using avrdude. Settings and variables.

AVRDUDE_PROGRAMMER = usbtiny
AVRDUDE_PORT = /dev/cuaa1

AVRDUDE_WRITE_FLASH  = -U flash:w:$(TARGET).hex
AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep
AVRDUDE_WRITE_FUSES  = -U lfuse:w:$(LFUSE):m -U hfuse:w:$(HFUSE):m


# Uncomment the following if you want avrdude's erase cycle counter.
# Note that this counter needs to be initialized first using -Yn,
# see avrdude manual.
#AVRDUDE_ERASE_COUNTER = -y

# Uncomment the following if you do /not/ wish a verification to be
# performed after programming the device.
#AVRDUDE_NO_VERIFY = -V

# Increase verbosity level.  Please use this when submitting bug
# reports about avrdude. See <http://savannah.nongnu.org/projects/avrdude> 
# to submit bug reports.
#AVRDUDE_VERBOSE = -v -v

#AVRDUDE_BASIC = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)
AVRDUDE_BASIC = -p $(MCU) -c $(AVRDUDE_PROGRAMMER)
AVRDUDE_FLAGS = $(AVRDUDE_BASIC) $(AVRDUDE_NO_VERIFY) $(AVRDUDE_VERBOSE) $(AVRDUDE_ERASE_COUNTER)


CC      = avr-gcc
OBJCOPY = avr-objcopy
OBJDUMP = avr-objdump
SIZE    = avr-size
NM      = avr-nm
AVRDUDE = sudo avrdude
REMOVE  = rm -f
MV      = mv -f

# Define all object files.
OBJ = $(SRC:.c=.o) $(ASRC:.S=.o) 

# Define all listing files.
LST = $(ASRC:.S=.lst) $(SRC:.c=.lst)

# Combine all necessary flags and optional flags.
# Add target processor to flags.
ALL_CFLAGS  = -mmcu=$(MCU) -I. $(CFLAGS)
ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)


# Default target.
all: build

build: elf hex eep lss size

elf:  $(TARGET).elf
hex:  $(TARGET).hex
eep:  $(TARGET).eep
lss:  $(TARGET).lss 
sym:  $(TARGET).sym
size: ${TARGET}.elf
	@echo
	@avr-size ${TARGET}.elf
#	@avr-size -C --mcu=${MCU} ${TARGET}.elf


# Program the device.  
program: $(TARGET).hex
	$(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH)


# Program the eeprom
eeprom: $(TARGET).eep
	$(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_EEPROM)


# Program the fuses
fuses: 
	$(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FUSES)

terminal:
	$(AVRDUDE) $(AVRDUDE_FLAGS) -t

reset:
	$(AVRDUDE) $(AVRDUDE_FLAGS)



# Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.
COFFCONVERT=$(OBJCOPY) --debugging \
--change-section-address .data-0x800000 \
--change-section-address .bss-0x800000 \
--change-section-address .noinit-0x800000 \
--change-section-address .eeprom-0x810000 


coff: $(TARGET).elf
	$(COFFCONVERT) -O coff-avr $(TARGET).elf $(TARGET).cof


extcoff: $(TARGET).elf
	$(COFFCONVERT) -O coff-ext-avr $(TARGET).elf $(TARGET).cof


.SUFFIXES: .elf .hex .eep .lss .sym

.elf.hex:
	$(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@

.elf.eep:
	-$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
	--change-section-lma .eeprom=0 -O $(FORMAT) $< $@

# Create extended listing file from ELF output file.
.elf.lss:
	$(OBJDUMP) -h -S $< > $@

# Create a symbol table from ELF output file.
.elf.sym:
	$(NM) -n $< > $@



# Link: create ELF output file from object files.
$(TARGET).elf: $(OBJ)
	$(CC) $(ALL_CFLAGS) $(OBJ) --output $@ $(LDFLAGS)


# Compile: create object files from C source files.
.c.o:
	$(CC) -c $(ALL_CFLAGS) $< -o $@ 


# Compile: create assembler files from C source files.
.c.s:
	$(CC) -S $(ALL_CFLAGS) $< -o $@


# Assemble: create object files from assembler source files.
.S.o:
	$(CC) -c $(ALL_ASFLAGS) $< -o $@



# Target: clean project.
clean:
	$(REMOVE) $(TARGET).hex $(TARGET).eep $(TARGET).cof $(TARGET).elf \
	$(TARGET).map $(TARGET).sym $(TARGET).lss \
	$(OBJ) $(LST) $(SRC:.c=.s) $(SRC:.c=.d)

depend:
	if grep '^# DO NOT DELETE' $(MAKEFILE) >/dev/null; \
	then \
		sed -e '/^# DO NOT DELETE/,$$d' $(MAKEFILE) > \
			$(MAKEFILE).$$$$ && \
		$(MV) $(MAKEFILE).$$$$ $(MAKEFILE); \
	fi
	echo '# DO NOT DELETE THIS LINE -- make depend depends on it.' \
		>> $(MAKEFILE); \
	$(CC) -M -mmcu=$(MCU) $(CDEFS) $(CINCS) $(SRC) $(ASRC) >> $(MAKEFILE)

.PHONY:	all build elf hex eep lss sym program coff extcoff clean depend


